Edward d



(No Model.)

B. D. MACKINTOSH.

MEANS FOR LUBRIGATING THE BEARINGS 0F UPRIGHT SHAFTS. No. 366,632.Patented July 12, 1887.

UNITED STATES PATENT OFFICE.

EDXVARD D. MAGKINTOSH, OF BROOKLYN, ASSIGNOR TO PAUL PRYIBIL,

' OF NEYV YORK, N. Y.

MEANS FOR LUBRICATING THE BEARINGS OF UPRIGHT SHAFTS.

SPECIFICATION forming part of Letters Patent. No. 366,632, dated July12. 1887.

Apr lication filed Novcmher16. 1886. Serial No. "218,904. (No model.)

To aZZ whom it may concern.-

Be it known that I, EDWARD D. llIACKIN- T0sH, of Brooklyn, in the countyof Kings and State of New York, have invented a new and usefulImprovement in Means for Lubricating the Bearings of Upright Shafts, ofwhich the following is a specification.

My invention relates to means which provide for the constant andautomatic lubrication of the bearirgs of upright shafts or spindleswhile such shafts or spindles are in motion.

In carrying out my invention I provide upon the shaft an oil well orcup, which surrounds the shaft and is secured thereto, and which has aninwardly projecting flange at the top to prevent the oil from beingthrown out by centrifugal force. This oil well or cup may beadvantageously formed in the upper portion of a pulley secured to theshaft. I also provide a fixed bearing, which is above the oil well orcup, and an oil tube or conduit, which is fixed relatively to thebearing and which leads from a point near the inner circumfcrence of theoil well or cup to the bore of said bearing. The shaft will usually beformed with a journal portion having a downward taper fitting the saidbearing, and the oil tube or conduit above referred to will communicatewith the bore of the bearing near the lower end thereof. The taper formof the bearing and journal portion of the shaft will cause the oil,whichis delivered to the bore of the bearing near its lower end, topassupward between the journal and the bearing, and at the upper end of itsbore the said bearing is constructed with an internal groove or channelfor receiving the oil, and from which a return conduit or passage leadsto the lower end of the bearing for returning the oil to the oil well orcup. I also provide in the oil well or cup a supply-tube, which extendsfrom the outer periphery of said well or cup inward considerably beyondthe inner circumference thereof. By means of a suitable oilcr the oilmay be introduced through such a supply oiltube, and, the tube beinghorizontal, the appearanceof oil in the tube will indicate that the oilwell or cup has received a sufficientsupply. To balance the spindle andpulley,

as well as to provide provision for supplying oil to the well or cup'indifferent positions where the spindle may be stopped, I provide twosupplytubes arranged diametrically opposite each other in the oil wellor cup.

The invention consists in novel combina tions of parts, which arehereinabove referred to, and which are hereinafter fully described, andpointed out in the claims.

In the accompanying drawings, Figure 1 is an elevation of a portion ofan upright shaft and a sectional view of a bearing and pulley embodyingmy invention, also including a see tional view of a step-bearing for theshaft, and Fig. 2 is a horizontal section on the plane of the dottedline a; m, Fig. 1.

Similar letters of reference designate corre sponding parts in bothfigures.

Adesignates the lower-portion of an upright spindle, which has, as hererepresented, a downwardlytaperingjournal, A, to thelower end of which isfitted a step-bearing, B. No particular description is needed of thisstepbearing, as my invention in nowise relates thereto.

(J designates an oil well or cup which surrounds the shaftand is securedthereto so as to rotate therewith. In the present example of myinventionthis oil wellor cup Gisformed integral with and at the upper end of thepulley G, which may be secured to the shaft, and which receives a belt(not here shown) whereby the shaft is driven.

D designates a fixed bearing, to the bore of which the taperjournalportion A of theshaft A is fitted, and which is here shown as above theoil well or cup 0 and extending downward thereinto.

Inserted in the oil well or cup C are supply or filling tubes 0, whichare arranged at diametrically-opposite points, and which extend from theouter periphery of said oil well or cup to a point considerably inwardof the inner cireumference thereof. Oil may be supplied through thcsesupply or filling tubes 0 to the well or cup 0 by means of an ordinaryoiler, and the tubes are arranged at such distanees above the bottom ofthe well or cup that when the oil appears in them. flowing outward theattendant will know that the oil well or cup 0 has received asuflicientsupply. A single tube, 0, might be employed; but I diametricallynercircumference of the upright wall of the well or cup, and in whichposition it will be thrown by centrifugal force as soon as rotary motionis applied to the spindle or shaft A. The tubes projectinwardsufficiently to prevent the oil from being thrown out through them bycentrifugal force, and the oil well or cup Ohas at the upper end aninwardly-projecting flange, c, which prevents oil from being thrown outof the well or cup by centrifugal force.

The fixed bearing D is provided with an inlet oil tube or conduit, d,which leads from a point near the inner circumference of the well or cup0 to the bore of the bearing. In this example of my invention the tubeor conduit dis formed by boring a radial hole in the flange d at thelower end of thebearing D, and the tube or conduit d leads to the boreof said bearing very near the lower end thereof. The centrifugal forcein the oil within the well 0r cup O, which is produced by the rotationof the shaft, will force oil inward through the tube or conduit (2 tofurnish'a copious supply for the bearing D, and by reason of the taperform of said bearing and the journal portion A of the shaft the oildelivered to the bore of the hearing at its lower end will be caused torise in the bearing and will be received in the annular channel'orgroove (2 formed in the bore of the bearing near its top. From thisannular channel or groove d a return conduit or'passage, d, conveys theoil to the bottom of the bearing and delivers it into the oil well orcup 0, so that the lubrication of the bearing is effected automaticallyand without any ma terial waste of oil.

What I claim as myinvention, and desire to secure by Letters Patent, is

1. The combination, with an upright shaft and an oil well or cupsurrounding and secured to the shaft and having an inwardly-projectingflange at the top to prevent oil from being thrown out by centrifugalforce, of a fixed bearing for the shaft and an oil tube or conduit fixedrelatively to the bearing and leading from a point near the innercircumference of the oil well or cup to the bore of said bearing,substantially as and for the purpose herein described.

the spindle or and an oil well or cup with an upright shaft surroundingand secured to the shaft and having .an inwardlyprojecting flange at thetop, of a bearing for the shaft constructed with an oil tube or conduitleading from a point near the inner circumference of the well or cup tothe bore of the bearing,near the bottom thereof, and with areturn-conduit leading from the upper portion of the bore of the bearingto the oil well or cup, substantially as herein described. 3. Thecombination, with an upright shaft and an oil well or cup surroundingand secured to the shaftand having an projecting flange at the top, of afixed bearing constructed with an-oil tube or conduit lead ing from apoint near the inner circumference of the oil well or cup to the bore ofthe bearing, near the lower end thereof, and also constructed with agroove in the upper portion of its bore, and a return conduit or passageleading from the groove to the oil well or cup, substantially as hereindescribed.

4. The combination, with an upright shaft having a downwardly-taperingjournal, A,

2. The combination,

and an oil well or cup surrounding and secured to the shaft and havingan inwardly projecting flange at the top, of the fixed hearing D,entering the well or cup and constructed with the inlet tube or conduitd, leading to the lower portion of its bore, and with the groove orannular channel d and return conduit or passage d", substantially asherein described.

5. The combination, with an upright shaft and an oil well or cupsurrounding and secured to the shaft and having the filling-tube 0extending inward from its exterior to a point beyond its innercircumference and the inwardly projecting flange c at its top, of abearing constructed with an inlet tube or conduit leading from a pointnear the inner circumference of the well or cup to the lower portion ofthe bore of the bearing, and also constructed with a return conduit orpassage leading from the upper portion of its bore to the, oil well orcup, substantially as herein described.

6. The combination, with the shaft A, having the taper journal A, andthe pulley constructed at the upper end with an oil well or cup, 0, ofthe bearing D, above the well or cup, constructed with the 'inlet tubeor conduit d, and with the groove 01 and return coir duit or passage d,substantially as herein described.

EDVVARD D.

Witnesses:

' FREDK. HAYNES,

HENRY J. MCBRIDE.

MAOKINTOSH.

inwardly-

